[Objective] The slope erosion characteristics in the granite red soil under different jute geotextile covering conditions were studied in order to provide a scientific basis for regional soil erosion control. [Methods] The slope erosion characteristics of granite red topsoil were investigated in terms of runoff coefficient

soil erosion rate

particle size distribution

and the enrichment ratio of eroded sediment through rainfall simulation experiments under the extreme rainfall intensity (90 mm/h) at slopes with 5° and 15° slope gradients and three different jute geotextile mulching conditions (uncovered

6 cm×6 cm

and 3 cm×3 cm). [Results] The runoff increased with rainfall duration

in contrast to a decrease in the soil erosion rate

indicating a detachment-limited erosion process. Compared to the uncovered treatment

jute geotextile mulching obviously reduced runoff and sediment under different experimental conditions. Additionally

sorting of the eroded sediment revealed that the clay-and silt-sized particles along the slope were preferentially and selectively transported

resulting in the enrichment of quartz coarse particles on the slope surface

especially at the gentle slope (5°) and high jute geotextile coverage (3 cm×3 cm). With rainfall duration

the continuous enrichment of quartz coarse particles on the slope further enhanced the erosion resistance of in-situ slope

corresponding to the gradual decrease of soil erosion rate with rainfall duration. [Conclusion] High-density jute geotextile covering can effectively reduce the runoff and sediment

and can increase the erosion resistance of in-situ slope

suggesting its potential as an effective measure for soil erosion prevention and restoration.